Home / 20,751.29-28,646.06-14,057.25

Finding the Fourth Proportional to 20,751.29, 28,646.06 and 14,057.25

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Solution

The fourth proportional to 20,751.29, 28,646.06 and 14,057.25 is: 19,405.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,751.29 : 28,646.06 = 14,057.25 : x
  2. Step 2: Convert to fraction form
    20,751.29/28,646.06 = 14,057.25/x
  3. Step 3: Cross multiply
    20,751.29x = 28,646.06 × 14,057.25
  4. Step 4: Simplify right side
    20,751.29x = 402,684,649.23
  5. Step 5: Solve for x
    x = 402,684,649.23/20,751.29
  6. Step 6: Final answer
    x = 19,405.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.